Fix gallery mobile view issues

- Make logout button show only icon on mobile (no text)
- Move upload button from top bar to sidebar menu on mobile
- Fix top bar layout with proper structure:
  - Logo on left
  - Gallery title centered
  - Event date and expiration date shown below title on mobile
- Improve responsive design for header elements
- Ensure upload button only appears in menu when uploads are enabled

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/components/gallery/GalleryView.tsx

@@ -307,6 +307,8 @@ export const GalleryView: React.FC<GalleryViewProps> = ({ slug, event }) => {
           totalPhotos={data?.photos.length || 0}
           isMobile={isMobile}
           galleryLayout={theme.galleryLayout}
+          allowUploads={event.allow_user_uploads}
+          onUploadClick={() => setShowUploadModal(true)}
         />
       ) : null}
 
@@ -331,7 +333,7 @@ export const GalleryView: React.FC<GalleryViewProps> = ({ slug, event }) => {
                 onClick={() => setSidebarOpen(!sidebarOpen)}
                 aria-label={t('gallery.toggleMenu')}
               >
-                {t('common.menu')}
+                <span className="hidden sm:inline">{t('common.menu')}</span>
               </Button>
             );
           }
@@ -342,7 +344,23 @@ export const GalleryView: React.FC<GalleryViewProps> = ({ slug, event }) => {
             );
           }
           
-          if (event.allow_user_uploads) {
+          // Upload button only on desktop when sidebar is shown
+          if (event.allow_user_uploads && showSidebar && !isMobile) {
+            items.push(
+              <Button
+                key="upload-button"
+                variant="outline"
+                size="sm"
+                leftIcon={<Upload className="w-4 h-4" />}
+                onClick={() => setShowUploadModal(true)}
+              >
+                {t('upload.uploadPhotos')}
+              </Button>
+            );
+          }
+          
+          // Upload button for non-sidebar layouts
+          if (event.allow_user_uploads && !showSidebar) {
             items.push(
               <Button
                 key="upload-button"
@@ -396,6 +414,8 @@ export const GalleryView: React.FC<GalleryViewProps> = ({ slug, event }) => {
             showSelectionControls={!showSidebar}
             eventName={event.event_name}
             eventLogo={brandingSettings?.logo_url}
+            eventDate={event.event_date}
+            expiresAt={event.expires_at}
           />
         </div>